Hydrant.



.. NITE Y JOHN F. MALLINCKRODT, OF BOULDER, COLORADO, ASSIGNOR OF ONE-HALF TO GEORGE P. SCHUMACKER, OF DENVER, COLORADO.

HYDRANT.

SPECIFICATION forming part of Letters Patent No. 636,909, dated November14, 1899. Application filed March Y25,'18-99. Serial No. 710,495. (Nomodel.)

To all whom, it may concern:

Be it known that 1JoHN F. MALLINCK RODT, a resident of Boulder, in thecounty of Boulder and State of Colorado, have invented certain new anduseful Improvements in Hydrants;- and I do hereby declare the followingto be a full, clear, and exact description of the invention, such aswill enable others skilled in theart to which it appertaigs to make anduse the same.

My invention relates to an improvement inY hydrants, the object of theinvention beingy to construct a valve for a hydrant Without.

cup-leathers and so construct same as to permit water to waste from thestandpipe only,

when the supply is entirely cut off.

A further object is to providera hydrant which will be simple inconstruction, comparatively cheap to manufacture, and most effectualwhen in use.

With these objects in view the invention consists in certain novelfeatures of construction and combinations and arrangements of parts, aswill be more fully hereinafter described, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a view` in sectionillustrating my improvements. Fig. 2 is a perspective View of aportionof the hydrant, and Figs. 3, 4, 5, and 6 are detail views of the severalparts of the valve. l

1 representsacylindrical casing externally screw-threaded at its ends,as shown. The

screw-threads on the upper end are adapted to engage internalscrew-threads on asuitable cap or cover 2, having a centralscrewthreaded hole or opening for the reception of a screw 3, on theupper end of which is secured any approvedwvheel or handhold tforturning same. The other end of thescrew is revolubly attached to astand-pipe 5, having any approved nozzle a a slot provided in the casing1.

The screw-threads on the lower end of the casing 1 mesh with internalscrew-threads of an upturned iiange 6 on a ring 7, integral with anddisposed around and between the ends of a' valve-casing 8. Suitableopenings b are provided in said ring 7 to permit the escape of waterfrom the casing. The upper inner edge ofthe valve-casing 8 is beveled orprojecting throughl inclined, as shown at 9, to facilitate the admissionof a rubber sleeve 10 and cage 11 for supporting same,which will now bedescribed.

The cage llis internally screw-threaded to mesh with externalscrew-threads on the lower end of the stand-pipe 5, and said cage ismade with downwardly-extending arms 12, from which depends a suitablevalve-stem 13, of sufficient length to pass entirely through the sleeve10. The stem 13 is screw-threaded on its lower end to engagescrew-threads in a plug or valve 14, which is normally disposed in anopening 15a in the bottom of the valve-casing. Said plug 14 has a squarebottom cast upon it to permit the use of a wrench.

The sleeve 10 is composed, preferably, of flexible material made in asingle piece and provided at its lower end with an internal recess toreceive a collar y on the upper end of a valve z The valve z comprisesupper and lower rings z and c2 and connecting-arms c3, forming a seriesof passages ,e4 for the passage ot` Water therethrough. The upper ringZ' is of approximately the size of the internal diameter 'of the casing,and the collar y is provided with an external groove y and a series ofopenings y2, communicating therewith, to permit the water passingthrough the hydrant to press against the flexible sleeve 10 and insure awater-tight fit of the sleeve. A suitable Washer w is secured betweenthe bottom of the valve .c and the top of the plug 14 to form awater-tight valve, and said plug constitutes in effect a partof thevalve.

To prevent leakage at the top of the sleeve 10, the latter is recessedto .forni a collar z5, Which will be pressed water-tight `against acorresponding collar zo on `the cage.

A peripheral groove 16 is provided around the sleeve 10 at a convenientpoint between its ends, and a suitable channel or passage 17, provided-in the valvecasing 8, connects the lower end of the passage or channel15 with said grooved portion 16 of the sleeve when the valve is on itsseat. A channel or passage 18 is provided in the valve-casing 8 forconveying Water from said groove 16 to the ground outside of thehydrant, said passages 17 and 18 forming a siphon.

The operation of my improved hydrant is as follows: When it is desiredto turn on the IOO 'ze A supply of water, the wheel or handheld 4 willbe turned to raise the stand-pipe 5, nozzle a, cage 11, sleeve 10, valve.2, and plug 14 and permit the water to pass through the hole 15,passages e4, and sleeve 10, (expanding the sleeve 10 against thecasing,) through the cage 11 and stand-pipe 5, and out through thenozzle d. It will be seen that the lifting of the sleeve 10 will throwthe peripheral groove I6 out of alinement with the passages or channels17 and 18 and that the groove 16 will be moved entirely out of line withsaid passages before the plug 14 moves far enough to permit water toflow through the hole 15. The discharge of water onto the ground, as iscommon with the hydrants now in use when the hydrant is only partiallyturned on, will therefore be eifeetually prevented. Vhen the hydrant isto be turned off, the wheel or handhold 4 is turned in the oppositedirection, which operation will push down the stand-pipe, nozzle, cage,sleeve, valve, and plug and force the plug 14 into the opening 15a andthe valve securely onto its seat to completely shut off the supply ofwater. The water left remaining in the hydrant will flow down throughthe sleeve, out through the passages .24, up through passage or channel17, into the grooved chamber 1G, and down the passage or channel 1S ontothe ground.

Various slight changes might be resorted to in the general form andarrangement of the several parts described without departing from thespirit and scope of my invention, and hence I would have it understoodthat I do not wish to limit myself to the Aprecise details set forth,but consider myself at liberty to make such slight changes andalterations as fairly fall within the spirit and scope of my invention.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a hydrant, the combination with a valve-casing, of a valve in saidcasing having passages or channels therein for the passage of Water anda Siphon cooperating with the channels or passages in said valve todrain the hydrant when said valve is closed.

2. In a hydrant, the combination with a valve-easing, of a valve in saidcasing having channels therein for the passage of water and said valvealso having a part provided with a peripheral groove or chamber, saidcasing having a channel to connect the channels in said valve with theperipheral groove or chamber and a channel communicating at its upperend with said peripheral chamber and open at its lower end.

3. In ahydrant, the combination of a valvecasing and a valve Itherein,said valve having channels for the passage of water therethrough, asleeve on said valve having a peripheral groove around the same, andsaid valve-casing havinga channel connecting the channels in said valvewith said groove in the scacco sleeve and another channel in saidvalve-cias'- ing adapted to convey the water from said groove to theoutside of said casing, said channels cooperating to form a siphon onlywhen' the supply of water is cut olf.

4. vIn a hydrant, the combination with a valve-casing and a valve-seattherein, of a valve having channels for the passage of water, a sleeveon said valve having a peripheral chamber around the same and a Siphonin said valve-casing to communicate with said peripheral chamber todrain the hydrant when said valve is closed.

5. In a hydrant, the combination With a valve-casing and a valve-seattherein, of a valve, a sleeve on said valve composed of a single pieceof flexible material and havinga passage therethrough for the passage ofWater, said flexible sleeve adapted to be forced tight against the sidesof the casing by the Water passing therethrough to prevent leakage.

6. In a hydrant, the combination with a valve-casing, of a valve havingchannels for the passage of water and also having a peripheral groove orchamber, said casing having a siphon for draining the water when thevalve is closed,said valve being so constructed as to break said Siphonwhen the valve is opened or partially opened.

7. In a hydrant, the combination with a valve-casingand a valve-seattherein, of a valve in said casing, a sleeve on said valve composed of asingle piece of flexible material and having a channel or passagetherethrough for the passage of Water, a siphon in said casing adaptedto drain Water from said hydrant when the valve is closed, and a plug ornut secured to said valve and adapted to maintain the Water-supply cutoff until the Siphon is broken.

8. In a hydrant, the combination with a valve-casing and a valve-seattherein, of a valve in said casing comprising upper and lower rings andconnecting-arms, a sleeve above said valve having an internal groove, acollar on said valve in said groove in the sleeve, and having a groovetherein andperforations communicating therewith.

9. In a hydrant, the combination witha casing, of a valve in saidcasing, a perforated collar thereon, a sleeve in said casing and acollar on said sleeve inclosing the collar on the valve.

l0. In a hydrant,the combination with a casing, of a cage in saidcasing, a collar on said cage, a flexible sleeve in said casing and acollar on said sleeve disposed in the collar in the cage.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

JOHN F. MALLINOKRODT.

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